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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/renderer/input_tag_speech_dispatcher.h"
#include "base/strings/utf_string_conversions.h"
#include "content/common/speech_recognition_messages.h"
#include "content/renderer/render_view_impl.h"
#include "third_party/WebKit/public/platform/WebSize.h"
#include "third_party/WebKit/public/platform/WebString.h"
#include "third_party/WebKit/public/web/WebDocument.h"
#include "third_party/WebKit/public/web/WebElement.h"
#include "third_party/WebKit/public/web/WebFrame.h"
#include "third_party/WebKit/public/web/WebInputElement.h"
#include "third_party/WebKit/public/web/WebNode.h"
#include "third_party/WebKit/public/web/WebSecurityOrigin.h"
#include "third_party/WebKit/public/web/WebSpeechInputListener.h"
#include "third_party/WebKit/public/web/WebView.h"
using blink::WebDocument;
using blink::WebElement;
using blink::WebFrame;
using blink::WebInputElement;
using blink::WebNode;
using blink::WebView;
namespace content {
InputTagSpeechDispatcher::InputTagSpeechDispatcher(
RenderViewImpl* render_view,
blink::WebSpeechInputListener* listener)
: RenderViewObserver(render_view),
listener_(listener) {
}
bool InputTagSpeechDispatcher::OnMessageReceived(
const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(InputTagSpeechDispatcher, message)
IPC_MESSAGE_HANDLER(InputTagSpeechMsg_SetRecognitionResults,
OnSpeechRecognitionResults)
IPC_MESSAGE_HANDLER(InputTagSpeechMsg_RecordingComplete,
OnSpeechRecordingComplete)
IPC_MESSAGE_HANDLER(InputTagSpeechMsg_RecognitionComplete,
OnSpeechRecognitionComplete)
IPC_MESSAGE_HANDLER(InputTagSpeechMsg_ToggleSpeechInput,
OnSpeechRecognitionToggleSpeechInput)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
bool InputTagSpeechDispatcher::startRecognition(
int request_id,
const blink::WebRect& element_rect,
const blink::WebString& language,
const blink::WebString& grammar,
const blink::WebSecurityOrigin& origin) {
DVLOG(1) << "InputTagSpeechDispatcher::startRecognition enter";
InputTagSpeechHostMsg_StartRecognition_Params params;
params.grammar = UTF16ToUTF8(grammar);
params.language = UTF16ToUTF8(language);
params.origin_url = UTF16ToUTF8(origin.toString());
params.render_view_id = routing_id();
params.request_id = request_id;
params.element_rect = element_rect;
Send(new InputTagSpeechHostMsg_StartRecognition(params));
DVLOG(1) << "InputTagSpeechDispatcher::startRecognition exit";
return true;
}
void InputTagSpeechDispatcher::cancelRecognition(int request_id) {
DVLOG(1) << "InputTagSpeechDispatcher::cancelRecognition enter";
Send(new InputTagSpeechHostMsg_CancelRecognition(routing_id(), request_id));
DVLOG(1) << "InputTagSpeechDispatcher::cancelRecognition exit";
}
void InputTagSpeechDispatcher::stopRecording(int request_id) {
DVLOG(1) << "InputTagSpeechDispatcher::stopRecording enter";
Send(new InputTagSpeechHostMsg_StopRecording(routing_id(),
request_id));
DVLOG(1) << "InputTagSpeechDispatcher::stopRecording exit";
}
void InputTagSpeechDispatcher::OnSpeechRecognitionResults(
int request_id,
const SpeechRecognitionResults& results) {
DVLOG(1) << "InputTagSpeechDispatcher::OnSpeechRecognitionResults enter";
DCHECK_EQ(results.size(), 1U);
const SpeechRecognitionResult& result = results[0];
blink::WebSpeechInputResultArray webkit_result(result.hypotheses.size());
for (size_t i = 0; i < result.hypotheses.size(); ++i) {
webkit_result[i].assign(result.hypotheses[i].utterance,
result.hypotheses[i].confidence);
}
listener_->setRecognitionResult(request_id, webkit_result);
DVLOG(1) << "InputTagSpeechDispatcher::OnSpeechRecognitionResults exit";
}
void InputTagSpeechDispatcher::OnSpeechRecordingComplete(int request_id) {
DVLOG(1) << "InputTagSpeechDispatcher::OnSpeechRecordingComplete enter";
listener_->didCompleteRecording(request_id);
DVLOG(1) << "InputTagSpeechDispatcher::OnSpeechRecordingComplete exit";
}
void InputTagSpeechDispatcher::OnSpeechRecognitionComplete(int request_id) {
DVLOG(1) << "InputTagSpeechDispatcher::OnSpeechRecognitionComplete enter";
listener_->didCompleteRecognition(request_id);
DVLOG(1) << "InputTagSpeechDispatcher::OnSpeechRecognitionComplete exit";
}
void InputTagSpeechDispatcher::OnSpeechRecognitionToggleSpeechInput() {
DVLOG(1) <<"InputTagSpeechDispatcher::OnSpeechRecognitionToggleSpeechInput";
WebView* web_view = render_view()->GetWebView();
WebFrame* frame = web_view->mainFrame();
if (!frame)
return;
WebDocument document = frame->document();
if (document.isNull())
return;
WebNode focused_node = document.focusedNode();
if (focused_node.isNull() || !focused_node.isElementNode())
return;
blink::WebElement element = focused_node.to<blink::WebElement>();
blink::WebInputElement* input_element = blink::toWebInputElement(&element);
if (!input_element)
return;
if (!input_element->isSpeechInputEnabled())
return;
if (input_element->getSpeechInputState() == WebInputElement::Idle) {
input_element->startSpeechInput();
} else {
input_element->stopSpeechInput();
}
}
} // namespace content
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